Double-portal folding and unfolding device and operation method thereof

A technology of retractable device and double gantry, applied in the direction of lifting device, etc., to achieve the effect of balancing the floating state of the ship, high operating efficiency and safety, and reducing the difficulty of design

Active Publication Date: 2021-09-17
708TH RES INST OF CSSC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem of how to realize deployment and recovery under high sea conditions for large or super large (large weight and large size) submersibles. And provide a double door frame retractable device and its working method

Method used

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  • Double-portal folding and unfolding device and operation method thereof
  • Double-portal folding and unfolding device and operation method thereof
  • Double-portal folding and unfolding device and operation method thereof

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Embodiment approach

[0046] In further embodiments of the present invention, please continue to refer to figure 1 with figure 2 shown. The moon pool 1 of the present invention is arranged at the stern of the hull 6, the shape of the moon pool 1 is U-shaped, the opening faces the stern, and the size of the moon pool 1 matches the external dimensions when the submersible 5 is deployed. Beneficial effects can be obtained in that the height of the mast device can be reduced, the horizontal travel distance of the mast can be reduced, and the size and weight of the mast can be greatly reduced.

[0047] In further embodiments of the present invention, please continue to refer to figure 1 with figure 2shown. The mast device 2 of the present invention includes a superstructure 21, a swing arm 22, a swing arm oil cylinder 23, a mast base 24 and the like. The upper structure 21 is a nearly rectangular structure. The four hinge points at the lower part of the upper structure 21 are hingedly connected ...

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Abstract

The invention relates to a double-portal folding and unfolding device and an operation method thereof. The double-portal folding and unfolding device comprises a moon pool, a portal device, a bracket lifting device and a deck opening and closing device. The moon pool is mounted at the stern of a hull; the deck opening and closing device is mounted on the hull at the upper part of the moon pool ; the portal device is mounted in the moon pool area; the bracket lifting device is installed on the portal frame device and used for lifting a submersible which enters autonomously to the position above the deck of the hull; and the portal device can swing towards the interior of the hull, the bracket lifting device and the submersible are swung inwards into the hull together, and folding and unfolding operation of the submersible is achieved. Automatic operation of the submersible from underwater to the ship deck or from the ship deck to the water surface is achieved, the operation efficiency and safety and reliability are greatly improved, the lifting winch has the advantages of being large in load capacity, light in self weight and small in base load, the lifting winch is provided with an active wave compensation system, and laying and recycling operation of the submersible under the high sea condition can be achieved.

Description

technical field [0001] The invention relates to a double mast retractable device and an operation method thereof, which belong to the technical field of ocean engineering workboats. Background technique [0002] Underwater operating devices such as manned submersibles, remotely operated vehicles (ROVs) and underwater vehicles (AUVs) usually require surface support ships to be transported to specific sea areas, and then deployed by specific devices on the sea surface or underwater for operations. It is recovered to the deck of the support ship for inspection and maintenance and data processing. [0003] The deployment and recovery operation of submersibles is the most critical part in the operation process of submersibles, and it is also the link most prone to accidents. At present, the current methods of retracting and deploying submersibles mainly include A-frame deployment and recovery, special crane single-arm deployment and recovery, slideway deployment and recovery, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B23/48
CPCB63B23/48
Inventor 曾庆松丁勇尉志源康为夏仲伟东刘树祥沈玉琦
Owner 708TH RES INST OF CSSC
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